20688001490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{147487}}^1$

素因数の和:147603

約数の個数: 48

約数和(自身を含む): 40809339648

約数和(自身を除く): 20121338158

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 169, 338, 415, 830, 845, 1079, 1690, 2158, 5395, 10790, 14027, 28054, 70135, 140270, 147487, 294974, 737435, 1474870, 1917331, 3834662, 9586655, 12241421, 19173310, 24482842, 24925303, 49850606, 61207105, 122414210, 124626515, 159138473, 249253030, 318276946, 795692365, 1591384730, 2068800149, 4137600298, 10344000745, 20688001490]

約数ペア:

[(1, 20688001490), (2, 10344000745), (5, 4137600298), (10, 2068800149), (13, 1591384730), (26, 795692365), (65, 318276946), (83, 249253030), (130, 159138473), (166, 124626515), (169, 122414210), (338, 61207105), (415, 49850606), (830, 24925303), (845, 24482842), (1079, 19173310), (1690, 12241421), (2158, 9586655), (5395, 3834662), (10790, 1917331), (14027, 1474870), (28054, 737435), (70135, 294974), (140270, 147487)]